Make running Phoenix in dev mode via docker-compose easier

config/dev.exs

@@ -37,6 +37,7 @@ config :phoenix, :stacktrace_depth, 20
 # Configure your database
 config :asciinema, Asciinema.Repo,
   adapter: Ecto.Adapters.Postgres,
+  url: System.get_env("DATABASE_URL"),
   username: "postgres",
   password: "postgres",
   database: "asciinema_development",

dev/.env.development

@@ -1,4 +1,5 @@
 RAILS_ENV=development
+MIX_ENV=dev
 BASE_URL=http://localhost:3000
 SECRET_KEY_BASE=19c70247f4034dd5ce4f3d6bd3b2b592624b63439d518367de9add564fdee9e6b8513f6cec24c2a933a84ea639136786813bb70d3dc4e84a365205a52e5bf1fa
 LEIN_ROOT=yes

dev/docker-compose.yml

@@ -3,6 +3,8 @@ version: '3'
 volumes:
   bundle:
   m2:
+  node_modules:
+  build:
 
 services:
   postgres:
@@ -30,9 +32,13 @@ services:
     ports:
       - 3000:3000
       - 4000:4000
+      - 5000:5000
       - 44444:44444
     volumes:
-      - ../uploads:/app/uploads
+      - ../uploads:/app/uploads:cached
+      - ../deps:/app/deps:cached
       - bundle:/bundle:cached
+      - node_modules:/app/node_modules:cached
+      - build:/app/_build:cached
       - m2:/root/.m2:cached
       - ../:/app:cached